Alexander ormsby



' the earth is packed around it.

UNITED .STATES PATENT EEICE.

ALEXANDER ORMSBY, OF BUFFALO, NEW YORK, ASSIGNOR OF ONE-HALF VTO HENRYEBERHART, OF SAME PLACE.

STOP-COCK BOX.

SPECIFICATION forming part of Letters Patent lo. 420,413, dated January28, 1890.

' Application iiled July 16, 1889. Serial No.317,726. (No model.)

To all wiz/0m, it may concern.-

Be it known that I, ALEXANDER ORMsBY, a citizen of the United. States,residing in Buffalo, in the county of Erie and State of New York, haveinvented certain new and useful Improvements in Stop-Cock Boxes, ofwhich the following is a specification.

My invention relates to certain new and useful improvements in stop cockboxes, whereby the box may be readily extended or shortened and theinner and outer boxes are not liable to become fastened together eitherby rust or dirt, and whereby a sufficient frostlift is at all timesprovided for, and also to certain other details of construction, all ofwhich will be fully and clearly hereinafter described and claimed,reference being had to the accompanying drawings, in which-m Figure l isa sectional elevation. Fig. 2 is a side elevation of the removablecover. Fig. 3 is a top view of the cover. Fig. 4- is a central sectionthrough line ct b, Fig. 3. Fig. 5 isa top view of the outer case,showing the openings in which the cover is iitted. Fig. G is a frontelevation of the inner box.

The inner boxtube l is provided with a tubular portion 2, having twoconical projections 3 on each side; but two may be usedone on eachside-if desired. At the foot of the tubular portion 2 is abase portion4, made hollow, so as to communicate with the tubular portion, and isprovided with an arched opening 5 through each side of the base, therebyadapting it to straddle and set down over a stop-cock pipe. This base ismade sufficiently long to fully inclose and cover the stop-cock andstraddle the pipe at each end of the stop-cock, and is provided with twoanges 6, located on opposite sides of the base. The object of thisconstruction is to strengthen the base, to give it a broad foot to standon, and be. held more firmly down when The outer case consists of atubular portion 7, having two projecting internal screw-threads 8 and 9of steep incline, and a vertical rib 10, connecting the end of the upperthread with the thread below it. Its obj ect is to provide a stop toprevent the inner tube from going up too far.

The object in having two screw-threads is to provide two bearingsdirectly opposite each other to rest upon the pins or conical lugs 3,one lug receiving the screwthread 8 and the opposite lug the otherscrew-thread 9, the construction being such that the lugs 3, beingdirectly opposite eachother, lie in a substantially horizontalline, andthe two independent and inwardly-projecting screw-threads 8 and 9 forman equal bearing at each side, so that the outer case 7 is evenlybalanced when in position at any desired vertical point up or down onthe tubular portion 2.

The employment of two independent screwa threads 8 and 9 admits of asteeper pitch than a single thread would give consistent with a properspace between Ithe threads for what is technically called a frostdiftgbesides the lugs 3 could not be located directly opposite each other onopposite sides of the tubular portion 2 if a single thread were used,and

f consequently the two tubular' portions could not be evenly balancedwhen put together.

The object of the conical lugs or tapering .projections 3 is to providethe means for an easy adjustment when required and to prevent the partsbeing clogged up by dirt or rust, and thereby prevent their easy adjustment or removal when necessary. This is an important advantage,because as heretofore constructed it is a wellltnown fact that suchstop-cock boxes are liable, after standing for a long time, to becomecemented together with rust and dirt, so that it is almost impossible toremove the outer from the inner box. Furthermore, when they become thuscemented together, a provision for a frostdift is then of no value. Bymy construction this objection is obviated, and the double internalthreads are sufticiently far apart to allow for any required frostdift,which is always easily oper ative, for reasons heretofore given.

The top of the case 7 is provided with an inside projecting rim orflange ll, in which are cut two inclined slots 12, directly oppositeeach other on each inner side, and inclining in opposite directions, andthe cover 13 (see Figs. 2, 3, and 4.) is provided with a downwardprojection 14 to lit the opening l5 in the top of thecase. On each sideof the portion 14,

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directly opposite each other, is an inclined lug 1G, one inclining in anopposite direction from the other, as shown by the dotted lines 1G inFig. 2. At the top of the portion 1l is a flanged portion 17. In thecenter of the cover are two recesses, which project downward and inward,so as to leave the holdingpicce 1S between them, by which the cover istaken off. From this construction it will be seen that as the coverslips down into place and the inclined projections pass into theinclined openings or slots 12 it moves down with a turning downwardmovement. This prevents it from accidentally coming off, and at the sametime permits its easy removal when required.

I claim as my invention 1. In a stopcock box,an inner tubular portion 2,having an enlarged base with the usual opening to straddle a pipe andcover the stopcock, and provided with lugs 3, secured on opposite sidesof the tubular portion opposite each other in substantially the samehorizontal plane, in combination with an outer tubu lar case providedwith two independent inwardly-projecting screw-threads 8 and 9, formingthe bearings for the lugs 3, and placed suliiciently far apart to permitthe lifting of the case 7 by the action of frost, substantially asdescribed.

2. In a stop-cookbox, an outer case or tubular portion 7, having aninner projecting iiange 11, provided with two opposite inclined slots onopposit-e sides,in combination with a cover having the portion 14,provided with two corresponding oppositely-inclined lugs 1G,substantially as and for the purposes described.

ALEXANDER ORMSBY. Witnesses:

.Timms SANGSTER, ARTHUR J. SANGSTER.

